Implement 'add' functions from RooAbsCollection in RooArgSet.

roofit/roofitcore/inc/RooArgSet.h

@@ -83,9 +83,19 @@ public:
   virtual TObject* create(const char* newname) const { return new RooArgSet(newname); }
   RooArgSet& operator=(const RooArgSet& other) { RooAbsCollection::operator=(other) ; return *this ;}
 
-  using RooAbsCollection::add;
-  using RooAbsCollection::addOwned;
-  using RooAbsCollection::addClone;
+  virtual Bool_t add(const RooAbsCollection& col, Bool_t silent=kFALSE) {
+    // Add all elements in list to collection
+    return RooAbsCollection::add(col, silent);
+  }
+  virtual Bool_t addOwned(const RooAbsCollection& col, Bool_t silent=kFALSE) {
+    // Add all elements in list as owned components to collection
+    return RooAbsCollection::addOwned(col, silent);
+  }
+  virtual void addClone(const RooAbsCollection& col, Bool_t silent=kFALSE) {
+    // Add owned clone of all elements of list to collection
+    RooAbsCollection::addClone(col, silent);
+  }
+
   virtual Bool_t add(const RooAbsArg& var, Bool_t silent=kFALSE) ;
   virtual Bool_t addOwned(RooAbsArg& var, Bool_t silent=kFALSE);
   virtual RooAbsArg *addClone(const RooAbsArg& var, Bool_t silent=kFALSE) ;